One of which has the error verifyproxy() error when running clientdiag
The client diagnostic tool is x86 only; I'm gonna guess you're using x64 servers, so that information is inconclusive.
What's in the WindowsUpdate.log?
even though they are receiving the updates from the server.
How do you know they're getting updates from the *WSUS* server if they're not reporting to the WSUS server?
Lawrence Garvin, M.S., MCSA, MCITP:EA, MCDBA
SolarWinds Head Geek
Microsoft MVP - Software Packaging, Deployment & Servicing (2005-2014)
My MVP Profile: http://mvp.microsoft.com/en-us/mvp/Lawrence%20R%20Garvin-32101
http://www.solarwinds.com/gotmicrosoft
The views expressed on this post are mine and do not necessarily reflect the views of SolarWinds.